Heel-building machine.



I PATENTED" JUNE 23, 1908" 0. 0. RYBERG. HEEL BUILDING MACHINE.

APPLICATION FILED MAY 6, 1907.

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PATENTED JUNE 23, 1908.

, HBEL' BUILDING MACHINE.

APPLICATION FILED MAY 6, 1907 2 SHEETS-SHBET 2.

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CHARLES O. RYBERG, BROCKTON, MASSACHUSETTS.

HEEL-BUILDING MACHINE.

' Specification of Letters Patent.

Patented June 23, 1908.

Application filed May 6, 1907. Serial No. 371,989.

To all whom it may concern:

Be it known that 1, CHARLES .O. RYBERG,

' of Brockton, in the county of Plymouth and applied to the lifts.

The invention has for its object to rovide a machine for this purposeadapted to e conveniently and efiectively operated, and it is embodiedin a machine oomprisinga suitable bed, a heel mold mounted 'on the bed,a heelpressing platen which is movable laterally from a position at oneside of the mold which it occu ies when the mold is being charged withli ts, to a position over the mold, preparatory to engaging and pressingthe hfts, the platen being movable from the last-mentioned position intocontact with the lifts for the pur ose of confining and com ressing thesame w 'le they are being attached to each other.

The invention consists in the several improvements which I will nowproceed to describe and claim.

Of the accompanying drawings, forming a part of thisspecification,-Figure 1 represents a side elevation, partly in verticalsection, showing the. essential parts of my improved machine. Fig. 2 reresents a top plan view of a portion of the ed of the machine, and asectional heel mold mounted thereon. Fig. 3 represents a top plan viewof the entire machine. Fig. 4 represents a perspective view of thesections of the mold.

ig. '5 represents a perspective view of the driving pulley, showingmeans for connecting a treadle strap thereto.

The same letters. of reference indicate the same arts in all thefigures.

In t e drawings 12 represents the bed ofmy improved machine, which ispreferably horizontal, and mounted .on suitable supports 13. On theforward ortion of the bed 1s mounted a heel mold, W 'ch is I referablyof adjustable construction, and etachably connected with the bed, thepreferred construction of the mold being as follows: 14 14 represent twomold sections having curved inner faces which collectively form thesides oh the following is of the mold, and cooperate with a front piece15, which forms the breast portion of the mold.- Each section 14 isprovided at its rear end with an ear 16, the said ears being insertedside by side in a cavity 17 formed in a block 18, which is fitted toslide between two fixed guides 19 19, said guides having dove-tailedrecesses 20 in their u per sides. The block 18 is provided in its si eportions with slots 21 21, and the ears 16 are provided with coincidingslots 22, said slots 21 22 receiving a in 23 which couples the ears 16and the b ock 18 together sufficiently to prevent horizontaldisplacement of the mold sections relatively to the block.

24 represents a dove-tailed keeper, which is inserted in the dove-tailedrecesses 20 in the fixed guides 19, and extends across the u per surfaceof the block 18 and the upper e ges of the ears 16, the said keeperpreventing vertical displacement of the mold sections. The block 18 isprovided with an upwardly-projecting ear 25 at its rear portion, whichis located at the rear of the keeper 24. A spring 78 inter osed betweenthe ear 25 and an ear 79 on t e keeper, normally forces the block 18 andthe jaws connected therewith, backwardly, the mold sections 14 beingthus also moved backward. When the keeper 24 is removed from the fixedguides 19, the coupling pin 23 may be removed, and the mold sectionswithdrawn. Provision is thus made for interchangeably using moldsections of different shapes and sizes. A spring 26 interposed betweenthe ears 16, presses the oblique outer edges of the mold sections,outwardly against adjustable stop screws 27 engaged with fixed ears 28on the bed of the machine. The breast portion or section 15 of the moldis vertically adjustable and is pressed against the front edge of thebed by means of a set screw 29 engaged with a plate 30, which is held bylugs 31 formed on the bed of the machine. By loosening the set screw 29,the breast p0rtion 15 may be ad'usted vertically to accommodate theheight of the heel. The bed of the machine is rovided with a recess inwhich is removabl y inserted a nail block 32, the upper surface of whichis flush with the upper surface of the bed, and forms the major portionof the bottom of the mold, said block being pro- 011 a head 35, which isadaptedto be reciprocated toward and from the block 32 by suitablepower, the drivers entering the nail holes 33, and being adapted toforce the nails into the lifts assembled in the mold. The drivers may bereciprocated by power applied through a crank shaft 36 journaled in bearings on the frame of the machine, and having a crank 37 connectedwith'the head 35 by means of a link or itman 7 7 pivoted at 38 to thehead 35, the atter being movable in a fixed guide 39. The shaft 36 isprovided with a driving pulley 40, which may be operated by powerthrough a belt or otherwise, or may be operated by foot power, theperiphery of the pulley being provided with orifices 41 (Fig. 5) adaptedto receive a bail or loop 42, to which is connected a strap 43 connectedwith a foot treadle, not shown.

44 represents an ejector, which is movable in the nail block 32 to raisenailed lifts from the mold after the nailing operation, the ejectorbeing connected with a lever 45, which is pivoted to the bed of themachine, and is adapted, when depressed at its outer end, to raise theejector.

The above-described mold being adjusted for the size of heel desired,the lifts are assembled in the mold, and are then subjected to pressureby a platen 46, which is normally elevated above the mold, and movedback from the space directly over the mold, as shown by full lines inFig. 1, means being provided, as next described, for moving the platenforward to a position over the mold, and then downwardly to bring itinto compressing contact with the lifts in the mold, as shown by dottedlines in Fig. 1. The platen has a shank 47, which is attached by a setscrew 48 to a head 49, formed 011 an arm 50, which is pivoted at 51 to aslide 52. The said slide is movable in suitable guides toward and fromthe mold, and is normally retracted from the mold, as shown by fulllines in Fig. 1, by a spring 54. The arm is provided with a wing orprojection 55, having a rear face 56 and an upper face 57.

58 represents an operating lever, which is forked at one end, the armsor branches of the lever being pivoted at 59 to ears 60 formed on thebed 12. The forked portion of the lever bestrides the arm 50, and thelever is provided between its arms with a trundle roll 61, adapted toengage the arm 50. The said arm is normally held in the raised positionshown in full lines, by a spring 62. The rear face 56 of the projectionon the arm 50 forms, with the upper portion of said arm, a recess whichis occupied by the roll 61 when the operating lever 58 is thrown backand the arm 50 and the platen are raised, as shown by full lines in Fig.1, the arrangement being such that when the lever 58 is thrown forwardby the operator, or toward the left, as viewed in Fig. 1, the roll 61will rectilinearly toward each exert pressure on the rear face 56, andthus force thearm 50 and the slide 52 forward to' 57, as indicated bydotted lines in Fig. 1, and

forces the arm 50 and the platen downwardly, the platen being thuscaused to exert pressure on the lifts in the mold. The arrangement issuch that the lever 58 may be left in the dotted line position, holdingthe laten against the contents of the mold, while the connecting nailsare being driven by the drivers. When this operation has been performed,the operator moves the lever 58 back to the osition shown in full linesin Fig. 1, the roll 61 moving from the top face 57, and allowing thespring 62 to raise the arm 50 and the platen 46 to the startingposition, the spring 54 at the same time retracting the slide 52, andwith it the arm 50 and the platen, so that the platen is drawn back fromthe space over the mold, leaving the latter unobstructed for the removalof the attached assemblage of heel lifts, and the insertion of anotherset of lifts. The extent of the forward movement of the slide 52 isgoverned by a fixed stop member 64 on the bed of the machine, and anadjustable stop member 65, which may be a screw adj ustably mounted inan ear or lug 66 on the slide 52. As here shown, the fixed stop member64 serves to limit the backward throw of the lever 58.

The lever 58 is provided with a toe piece or projection 80, which bearsagainst the ear 25 on the block 18 when the lever is thrown back, asshown in full lines. The projection 80 permits the block 18 and the moldsections 14 connected therewith, to also move backwardly. Then the leveris thrown forward, the projection 80 forces the block 18 and the moldsections 14 forward, thus causing the mold sections to be moved inwardlyby the sliding of their inclined outer edges and contact with the stopscrews 27. The mold is thus contracted by the operation of moving theplaten to its pressing position.

The machine may be provided with a holder or magazine for the heellifts, said holder being composed of vertical wire rods 67, the endsportions of which are attached to suitable end pieces or heads 68, oneof which forms the bottom of the holder, and is mounted on an arm 69attached to the frame of the machine.

It will be observed that the connection between the side sections 14 andthe block 18, effected by the slots 21 22, and pin 23, is such that theside sections are adapted to slide other when they are pressed forwardto press the oblique outer edges of theside sections against the stops27, and also to be freely released and removed to permit other sidesections of different size and shape to be substituted, the sidesections being released by the simple operation of lifting the pin 23from the slots 21 22. The rectilinear movement of the side sectionscauses them to exert a more effective pressure at all parts of theirinner edges against the heel than would be the case if they were pivotedand adjusted by a swinging movement. The freedom of release andengagement of the side sections, permits the interchange of difierentsections without such loss of time as would be involved by the emloyment of screws.

claim:

1. A heel building machine comprising a mold, a heel pressing platenmovable horizontally into and out of the space above the mold andmovable vertically toward and from the mold when in said space, a slideto which the platen is ivotally connected, said slide being movabl etoward and from the mold, means for yieldingly holding the slideretracted from the mold, means for yieldingly holding the platen in araised position relatively to the slide, and platen operating mechanismhaving means for moving the slide to carry the platen to a positionabove the mold, and for forcing the platen into the mold.

2. A heel building machine comprising a mold, a heel pressing platen, aslide movable toward and from the mold, connections between the slideand platen whereby movements of the slide are imparted to the platen,means for normally holding the platen raised above the mold, means fornormally holding the slide and platen retracted from the mold,

and means for successively projecting the slide and platen to locate theplaten over the mold and force the platen into the mold.

3. A heel building machine comprising a mold, a heel pressing platen, aslide movable toward and from the mold, an arm pivoted to the slide andsupporting the platen, means for yieldingly holding the arm in a raisedpo sition, means for yieldingly holding the slide retracted from themold, and a pivoted operating lever, said lever and arm havingcooperating members which act when the lever is forced forward to firstmove the slide forward toward the mold, and then to force the platenagainst the contentsof the mold.

4. A heel building machine comprising a mold, a heel pressing platen, aslide movable toward and from the mold, a platen-supporting arm pivotedto the slide and provided with a projection having rearand upper faces,means for yieldingly holding the arms in a raised position, means foryieldingly holding the slide retracted from the mold, and a pivoted oerating lever provided with a roller adapte to cooperate with the facesof said projection in moving the slide and depressing the platen.

5. A heel building machine comprising a mold, a heel-pressing platen, aslide movable toward and from the mold, an arm pivoted to the slide, andsupporting the platen, means for yieldingly raising the arm and laten,means for yieldingly retracting the slide, a pivoted operating lever,said arm and lever having cooperating parts which act, when the lever isthrown forward, to move the slide toward the mold and to depress theplaten, and relatively adjustable stop members which limit the forwardmovement of the slide.

6. A heel building machine comprising a bed, a mold mounted thereon, andcomposed of side sections havingrearwardly projecting ears, and a breastsection, a holding block having a recess in which said ears arelaterally movable, the ears and block having coinciding slots, acoupling pin engaging said slots, and loosely connecting the block andthe side sections, fixed guides at op osite sides of the block, a keeperdetachab y engaged with said guides and confining the ears in the recessof the block, the latter having a projection engaging the keeper, theside sections being adapted to move independently toward and from eachother, and stops to limit the outward movement of the side sections.

7. A heel building machine comprising a bed, a mold mounted thereon, andcomposed of side sections bearing loosely on the bed, a holding blockslidable on the bed, connections between the block and side sectionshaving provisions for permitting the latter to slide toward and fromeach other, and to be freely interchanged with other side sections,means for detachably connecting the holding block with the bed, anoperating lever pivoted to the bed, and having a projection adapted toengage the holding block and force the same forward, the side sectionshaving oblique outer edges, and stops bearing against said edges, andadapted to force the N. 0. KING, l GUSTAF A. CARLTON.

